公开(公告)号：US20220097125A1

公开(公告)日：2022-03-31

申请号：US17034530

申请日：2020-09-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lokesh Choudhary ,  Tiruttani Munikamal ,  Qigui Wang ,  Liang Wang

IPC: B22C9/10 ,  B22D17/22

Abstract: A hybrid core for manufacturing a cast component, the hybrid core including a sand core portion having an exterior shape configured to define an interior feature of the cast component. The hybrid core also includes a metal chill element embedded within the sand core portion. The metal chill element is configured to locally absorb heat energy from the cast component during cooling of the cast component and solidification thereof. The metal chill element is constructed and arranged within the sand core portion to be removed during shake out from the cast component subsequent to the solidification thereof. A system and a method for manufacturing a cast component using such a hybrid core are also envisioned.

公开(公告)号：US20210146479A1

公开(公告)日：2021-05-20

申请号：US16684055

申请日：2019-11-14

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin Li ,  Liang Wang ,  Dale A. Gerard

IPC: B23K26/244 ,  B23K26/00 ,  B23K35/30 ,  B22D19/00 ,  B22D19/04 ,  F16H57/02

Abstract: A method of joining two ferrous alloy component parts. The method includes hot metal casting a portion of a first ferrous alloy component part onto a first joining surface of a low carbon intermediate element; friction fitting a joining surface of a second ferrous alloy component part against a second joining surface of the low carbon intermediate element; and fusion welding with a concentrated energy source the intermediate element to the second ferrous alloy component part. The hot metal casting includes flowing a molten ferrous alloy onto the textured first joining surface, wherein the molten ally encompasses tabs extending from the first joining surface and filling apertures defined in the intermediate element. Then cooling the molten ferrous alloy such that a metallurgical and mechanical bond is formed between the portion of the first ferrous alloy component part and the first joining surface of the low carbon intermediate element.

公开(公告)号：US20190099836A1

公开(公告)日：2019-04-04

申请号：US15723272

申请日：2017-10-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Liang Wang ,  Qigui Wang ,  Daniel J Wilson

IPC: B23K26/342 ,  B33Y10/00 ,  B33Y40/00 ,  B23K26/12 ,  B23K26/144 ,  B23K15/00 ,  B23K9/04

Abstract: A method for additive manufacturing of an article using pressurizing gas in an enclosure including introducing additive manufacturing equipment into the enclosure before sealing and removing air from the sealed enclosure to obtain a predetermined oxygen threshold. Next, the sealed enclosure is pressurized to obtain a predetermined pressure threshold using an inert gas. When the predetermined pressure threshold is obtained, the article is constructed using additive manufacturing.

公开(公告)号：US12128476B2

公开(公告)日：2024-10-29

申请号：US18158725

申请日：2023-01-24

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Liang Wang ,  Tiruttani Munikamal ,  Shasha Vali Shaik ,  Suresh Kumar K ,  Steven L Burkholder ,  Thomas W. Gustafson

IPC: B22D25/04 ,  B22D21/00 ,  B22D35/04

CPC classification number: B22D25/04 ,  B22D21/007 ,  B22D35/04

Abstract: A system and method of manufacturing an aluminum fuel cell cradle includes providing a negative cast mold having cavities to form the cradle having a length greater than a width to define a longitudinal axis and providing a feeding mechanism disposed about the mold and in fluid communication with the cavities thereof. The feeding mechanism includes primary risers connected to and in fluid communication with the cavities. The method further includes melting a first metallic material to define a molten metallic material, moving the mold to a vertical orientation about the longitudinal axis while feeding molten metallic material through the runner to the cavities, and moving the cast mold to a horizontal orientation. A second solidification time in the risers is greater than a first solidification time in the mold such that shrinkage of the solidified metallic material occurs in the risers away from the mold.

公开(公告)号：US12097583B2

公开(公告)日：2024-09-24

申请号：US17729603

申请日：2022-04-26

Applicant: GM Global Technology Operations LLC

Inventor： Daniel J. Wilson ,  Liang Wang ,  Qigui Wang ,  Devin R Hess ,  Michelle A. Wood ,  Ali Shabbir ,  Ronald C. Daul ,  Dale A. Gerard ,  Gregory Melekian

IPC: B23P6/04

CPC classification number: B23P6/04

Abstract: A method of repairing an ultra-large single-piece cast component of a vehicle body. The method includes the steps of locating a damaged portion of the cast component, determining an extent of the damaged portion of the ultra-large cast component, defining a cut-line sectioning off the damaged portion from an undamaged portion of the ultra-large cast component, cutting along the cut-line to excise the damaged portion from the undamaged portion of the ultra-large cast component, and joining a replacement piece to the undamaged portion of the ultra-large cast component. The replacement piece is fabricated based on the original manufacturer's geometry and dimensional data of the excised damaged portion. The undamaged portion of the ultra-large cast component remains on the vehicle body during the repair.

公开(公告)号：US12097555B2

公开(公告)日：2024-09-24

申请号：US17735337

申请日：2022-05-03

Applicant: GM Global Technology Operations LLC

Inventor： Daniel J. Wilson ,  Liang Wang ,  Qigui Wang ,  Devin R Hess ,  Michelle A. Wood ,  Ronald C. Daul ,  Ali Shabbir

IPC: B23P6/04 ,  B22C9/22 ,  B22D17/22 ,  B62D25/20

CPC classification number: B22D17/229 ,  B22C9/22 ,  B23P6/04 ,  B62D25/2063

Abstract: A design for repair casting having a repairable ultra-large single-piece casting and a replacement part. The ultra-large single-piece casting includes a main body portion, at least one predefined replaceable portion integrally cast with the main body portion, and a cut-guide delineating the predefined replaceable portion from the main body portion. The cut-guide includes a continuous channel defined on an exterior surface of the single-piece casting. The cut-guide further includes a rib extending from a channel wall on the main body portion. A damaged replaceable portion is excisable from the main-body portion by cutting through the single-piece casting along the cut-guide. The excised damaged replaceable portion may be replaced with the replacement part, which has substantially the same geometry, dimensions, and mechanical properties as an undamaged replaceable portion. The replacement part may be joined to the main body portion by mechanical means or by welding.

公开(公告)号：US11890668B2

公开(公告)日：2024-02-06

申请号：US17839680

申请日：2022-06-14

Applicant: GM Global Technology Operations LLC

Inventor： Liang Wang ,  Qigui Wang ,  Jianghuai Yang ,  Kiran Mistry ,  Oliver Patrick Jordan

IPC: B22D25/02 ,  B22C9/02 ,  B22D19/04 ,  B22D25/06

CPC classification number: B22C9/02 ,  B22D19/04 ,  B22D25/06 ,  B23P2700/07 ,  F16C2202/06 ,  F16C2202/10 ,  F16C2204/60 ,  F16C2220/06 ,  Y10T29/17 ,  Y10T29/49286

Abstract: Systems and methods of making a cast steel alloy crankshaft for an internal combustion engine are provided. The method comprises providing a mold of the crankshaft. The mold has cavities to form the crankshaft. The method further comprises melting a first metallic material at between 1400 degrees Celsius (° C.) and 1600° C. to define a molten metallic material. In addition, the method further comprises feeding the molten metallic material at a riser connection angle of between 30° and 75° in the cavities of the negative sand cast mold. The method further comprises cooling the molten metallic material at a solidification time of between 5 seconds (sec) and 20 sec in the negative sand cast mold with at least one chill member to define a solidified metallic material having dimensions of the cast steel alloy crankshaft. Furthermore, the method comprises separating the solidified metallic material from the negative sand cast mold to define the cast steel alloy crankshaft.

公开(公告)号：US11707802B2

公开(公告)日：2023-07-25

申请号：US16860702

申请日：2020-04-28

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin Li ,  Liang Wang ,  Stephen R. McKenny ,  Daniel J. Wilson

IPC: B23K26/035 ,  B23K26/24 ,  B23K26/06 ,  B23K26/062 ,  B23K26/08 ,  B23K26/60 ,  B23K26/12 ,  H05B6/10 ,  B23K103/04 ,  B23K101/00

CPC classification number: B23K26/035 ,  B23K26/062 ,  B23K26/0665 ,  B23K26/08 ,  B23K26/123 ,  B23K26/60 ,  B23K2101/008 ,  B23K2103/04 ,  H05B6/10

Abstract: Angled, single laser weld and a method of forming an angled, single laser weld including arranging a first and second faying surfaces of a first and second component adjacently to form an interface between the components; irradiating at least one of the first and second components at the interface with a laser, wherein the first faying surface defines a plane formed at an angle alpha in the range of +/−5 degrees to 60 degrees from an axis A perpendicular to the first front surface and the second faying surface matches the first faying surface; and forming a junction at the interface with an hourglass shaped weld.

公开(公告)号：US20220355232A1

公开(公告)日：2022-11-10

申请号：US17307290

申请日：2021-05-04

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Andrew Thomas Cunningham ,  Zach Steffes ,  Brennon L. White ,  Liang Wang

IPC: B01D39/20 ,  B22D11/119 ,  C04B38/00 ,  B28B1/00

Abstract: A ceramic foam filter system includes a filter body having multiple tortuous path channels through the filter body to filter a molten liquid. A filter holder configuration defining a canister in a runner passage receives the filter body. An upstream end of the filter body receives the molten liquid having multiple inclusions. A predominant portion of the inclusions are larger than the multiple tortuous path channels and are trapped against the upstream end of the filter body. The multiple tortuous path channels are sized to trap a predominant portion of multiple oxides within the molten liquid as trapped oxides within the filter body. A filtered molten material having the multiple inclusions and the multiple oxides removed is directed from the multiple tortuous path channels as a discharge flow to exit at a downstream end of the filter body.

公开(公告)号：US20220162968A1

公开(公告)日：2022-05-26

申请号：US17101425

申请日：2020-11-23

Applicant: GM Global Technology Operations LLC

Inventor： Daniel J. Wilson ,  Huaxin Li ,  Edward J. Keating ,  Liang Wang ,  Devin R. Hess

IPC: F01L3/02 ,  C22C9/06 ,  B23K26/34 ,  B23K35/30

Abstract: A valve seat formed within an aluminum engine component includes a valve seat surface machined within the aluminum engine component, a layer of copper alloy material laser clad onto the valve seat surface of the aluminum engine component, the layer of copper alloy material having a thickness of less than 2.0 millimeters, and a layer of copper alloy/tool steel carbide material laser clad onto the layer of copper alloy material, the layer of copper alloy/tool steel carbide material having an average thickness of less than 0.5 millimeters, wherein the layer of copper alloy/tool steel carbide material has an outer surface that is machined to a final valve seat profile.